Chapter 1 Present and Past: Simple and Progressive

1. Chapter 1 Present and Past: Simple and Progressive Virtual Reality

2. Virtual reality uses software to create realistic images and sounds. These images and sounds copy a real environment. Most virtual reality programs use a computer screen or a virtual reality headset. The user looks around and interacts with the virtual environment.

3. Use the simple present to talk about general statements of facts and general truths. Virtual reality uses software to create realistic images and sounds. These images and sounds copy a real environment. The user looks around and interacts with the virtual environment.

4. Vanessa is training to be a medical doctor. She is performing a routine medical examination, but she is not examining a human patient. Vanessa is using virtual reality to practice her skills. When people think of virtual reality, they often think first of video games. However, virtual reality is becoming more and more common for training and education purposes. In the medical field, virtual reality is giving new medical professionals the necessary preparation for everything from simple routine exams to complicated lifesaving procedures. Virtual reality is changing the way people learn.

5. Use the present progressive for activities that are in progress at the moment of speaking. Sara is training to be a medical doctor. She is performing a routine medical examination. Virtual reality is becoming more common in education and training. now later start

6. PRACTICE 1: Complete each sentence with the correct form of the verb. offers 1. Virtual reality__________ (offer) many benefits in the classroom. 2. Jackie is in the lab right now. She __________ (use) a new virtual reality program. 3. Technology______________ (change) rapidly these days. 4. I__________ (think) virtual reality is amazing. 5. Miguel ____________ (have) a degree in engineering. 6. He often _______________ (use) virtual reality technology to complete his projects. 7. Vanessa ____________________ (work) at the hospital. is using is changing think has uses works / is working

7. Miguel graduated last year with a degree in civil engineering. While he was working on his degree, he became interested in the use of virtual technology in engineering. When he completed his degree, he found a job with a new company. The company was experimenting with virtual reality. Miguel finishedhis first project last month. While he was planningthe project, he used virtual reality to view and edit each step. This technology helpedhim visualize his plans.

8. Use the simple past for a verb that began and ended at a particular time in the past. Miguelgraduatedlast year. NOW graduated last year

9. Use the past progressive for activities that were in progress at a particular time in the past. While he was working on his degree, he became interested in virtual reality. became interested in virtual reality NOW working on degree

10. PRACTICE 2: Complete each sentence with the correct past tense form of the verb. was working • While the engineer ______________ (work) on her project, she used virtual reality technology to view her plans. • 2. Last week Miguel ___________ (complete) two projects. • 3. The students _____________ (wear) their headsets when the power suddenly went out. • 4. By 2010, many universities _____________ (offer) courses in virtual reality software. • 5. The technology company __________ (open) in 2010. completed were wearing were offering opened